The Green Corn Ceremony was traditionally celebrated during late June or early July for about four days. The dates scheduled for the celebration depended upon the time the first corn ripened. The ceremony was held in the middle of the ceremonial grounds. Included in the rituals were the stomp dance, feather dance and buffalo dances.
At certain points of the ceremonies the people fasted, played stickball, had corn sacrificing and took medicine. Then after the ceremonial fasting they would feast. Another ritual observed was rinsing themselves in water and having prayer.
It is believed when you recieve a cleansing it washes away impurities or bad deeds and starts a new life. The cleansing ceremony was performed by a priest which was followed with fasting and praying and other sacred practices.